| Value | Category | Cases | |
|---|---|---|---|
| 1979 | 1 |
0.1%
|
|
| 1984 | 3 |
0.2%
|
|
| 1985 | 3 |
0.2%
|
|
| 1986 | 2 |
0.2%
|
|
| 1987 | 2 |
0.2%
|
|
| 1988 | 6 |
0.5%
|
|
| 1989 | 7 |
0.6%
|
|
| 1991 | 6 |
0.5%
|
|
| 1992 | 9 |
0.7%
|
|
| 1993 | 14 |
1.1%
|
|
| 1994 | 9 |
0.7%
|
|
| 1995 | 14 |
1.1%
|
|
| 1996 | 11 |
0.9%
|
|
| 1997 | 21 |
1.7%
|
|
| 1998 | 36 |
2.9%
|
|
| 1999 | 39 |
3.1%
|
|
| 2000 | 51 |
4.1%
|
|
| 2001 | 41 |
3.3%
|
|
| 2002 | 57 |
4.5%
|
|
| 2003 | 77 |
6.1%
|
|
| 2004 | 73 |
5.8%
|
|
| 2005 | 120 |
9.5%
|
|
| 2006 | 116 |
9.2%
|
|
| 2007 | 147 |
11.7%
|
|
| 2008 | 156 |
12.4%
|
|
| 2009 | 203 |
16.1%
|
|
| 2010 | 34 |
2.7%
|
|
| 9997 | inconsistent | 0 |
0%
|
| 9998 | don't know | 0 |
0%
|
| Sysmiss | 10501 |